Name: Sugar Cookie Biscotti
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Ingredients: 3 cups all-purpose flour (Whisked with baking powder); 1.5 tsp baking powder (Used for leavening); 0.5 cups salted butter (At room temperature); 1 cups granulated sugar (For sweetness); 3 large eggs (At room temperature, divided); 2.25 tsp vanilla extract (Divided into batter and glaze); 0.5 cups rainbow sprinkles (Divided between the dough and topping); 2 cups powdered sugar (For sweetness and gloss); 3 tbsp milk (Add more as needed for consistency)

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How I Found This Little Treat

I remember the first time I baked Sugar Cookie Biscotti it felt like a small celebration: the kitchen smelled like butter and vanilla, the timer ticked in a way that made me impatient, and a bowl of rainbow sprinkles looked like tiny confetti waiting to be set loose. If you like the idea of a cookie that keeps well and pairs perfectly with coffee, you might want to try this sugar cookie biscotti recipe I first bookmarked months ago. It’s one of those sweets that’s deceptively simple but feels special every time.

The Secret Behind Perfect Sugar Cookie Biscotti

Let me tell you what you’ll need before we dive into the steps, because I’ll mention them as we go. The dough is built on 3 cups all-purpose flour and 1 ½ tsp baking powder whisked together first. You’ll cream ½ cup (1 stick) salted butter, at room temperature, with 1 cup granulated sugar until light and creamy. This recipe uses 3 large eggs, at room temperature, divided — two go into the batter and one becomes an egg wash — and a total of 2 ¼ tsp vanilla extract, divided so that 2 tsp flavor the dough and the remainder brightens the glaze. For the playful color you’ll fold in ½ cup rainbow sprinkles, divided between the dough and the topping. For the glaze you’ll reserve 2 cups powdered sugar (for glaze) and 3 tbsp milk (for glaze), plus more as needed to get the consistency you like.

What makes these biscotti sing is the balance between a sugar-cookie sweetness and that classic biscotti crunch. I always preheat the oven to 350°F and line a baking sheet with parchment paper, then whisk together the flour and baking powder in a medium bowl so the rising agent is evenly distributed. That little step avoids any one patch of dense dough and keeps the texture even.

Making the Dough (and a few tricks I use)

I use a stand mixer because it makes the creaming stage effortless. In a stand mixer, beat the room temperature butter and granulated sugar on medium speed until light and creamy. You’ll see the mixture turn paler and fluffier — that’s a good sign you’ve aerated it properly. Then, reduce speed to low and add 2 eggs one at a time, then mix in 2 tsp of vanilla, scraping down the bowl as needed so nothing sticks to the sides. Scraping matters; if you don’t, you’ll end up with streaks of butter or pockets of unmixed flour.

Gradually add the flour mixture and mix just until combined. Overmixing is how you get tough biscotti, and this is a cookie where restraint pays off. Once it’s barely combined, fold in half of the sprinkles so they’re distributed without melting into the dough. Divide the dough in half and shape each half into an 8-by-4½-inch rectangle on the baking sheet. I find a ruler helps if you’re after neat, even logs, but rustic shapes are just as charming.

Before these go into the oven, I brush the remaining egg over the dough and sprinkle with the remaining sprinkles for that pretty, glossy top. Brush gently so you don’t flatten the logs. Bake for 25-30 minutes until lightly browned; you want a soft but set log that will hold its shape when sliced. Tip: if your oven runs hot, check at 20 minutes. You’re looking for light golden color and a springy feel in the center.

Timing and Texture — How to Know It’s Done

After the first bake, allow to cool for 15 minutes, then slice into ½-inch thick biscotti with a serrated knife. The slices should hold together cleanly; if they crumble, the first bake was too soft or you might have sliced too early. Arrange on the baking sheet with cut sides up and bake for another 10 minutes. Flip slices and bake for another 10 minutes until dry. This two-step bake is the essence of biscotti — it dries out the cookie without burning it, giving that satisfying snap you can hear when you bite.

A few personal tips: use a serrated knife for clean cuts, let the logs rest so they firm up slightly before slicing, and don’t skip the egg wash — it gives a beautiful sheen and helps the second set of sprinkles stick.

The Best Part About This Dish (and what to serve with it)

Once everything is dry and cooled, whisk the glaze together. For the glaze, whisk powdered sugar, milk, and the remaining vanilla until smooth. Add more milk for desired consistency; I start with 3 tbsp milk and stir until it coats a spoon but still drips slowly. Dip or drizzle the cooled biscotti with the glaze and let set for at least 15 minutes. The glaze gives a sweet, slightly creamy contrast to the crunchy cookie, and those sprinkles make it look like a party.

I love serving these with a cup of strong coffee or a loose-leaf black tea. They’re also delightful paired with a cold glass of milk for kids, or tossed into a dessert platter alongside chocolate-dipped biscotti. If you’re bringing them to a brunch, they keep their shape and flavor, so they travel well.

A Few Ways to Make It Yours

You can riff on this easily. Swap half the sprinkles for finely chopped almonds for a nutty version; use lemon zest and a teaspoon of lemon extract in place of some vanilla for a citrus twist; or fold in mini chocolate chips and drizzle melted dark chocolate instead of the vanilla glaze. If you like the idea of leaning into a bakery-style flavor, I once made a mash-up inspired by a cookie I loved and it reminded me of the bright pink sugar cookies you see at chain bakeries — that gave me the idea to try a softer pastel glaze and slightly more vanilla than usual, which was delicious. If you want another flavor inspiration, check out Crumbl pink sugar cookies ideas for playful takes you can borrow from.

How to store leftovers: once the glaze is set, keep biscotti in an airtight container at room temperature for up to two weeks. They’ll stay crisp. For longer storage, freeze in a single layer on a tray until firm, then transfer to a freezer bag; thaw at room temperature when you want them. Making them ahead is one of my favorite hostess shortcuts — you can glaze them the day you plan to serve.

I still picture the first tray I pulled out of the oven: warm, slightly crackling from the glaze as it cooled, and the house smelling like sugar cookies and vanilla. Each batch invites tiny variations, and that’s part of why I keep going back to this recipe. It’s forgiving, bright, and it travels from the cookie jar to the coffee cup with ease.

Conclusion

If you ever want a slightly more delicate vanilla biscotti base to compare notes with, I like looking at recipes like Sweet Vanilla Bean Biscotti – Sally’s Baking Addiction for technique inspiration and flavor ideas.