I make almost every baked good I consume from scratch with the best ingredients available to me. I’m a bit of a snob when it comes down to it. Even at the height of the pandemic, I was inspecting different brands of flour to see their protein counts because I care that much.* That said, when it comes to store-bought baked goods, I have one glaring weakness: Costco croissants.

*4% or bust. King Arthur, Heckers & Trader Joe’s only.

I will go out of my way for a Costco croissant. They are shockingly delicious, especially when eaten like a wild animal mid-shopping trip, somewhere between produce and electronics. I was introduced to them by my friend and certified Costco enthusiast, David, and I’ve been ruined ever since. The finest French pastry they are not, but I defy you not to enjoy one while it’s still warm, as they almost always are when I sling them into my cart. For $6 (and a Costco membership) you too can have 12 big, buttery Costco croissants in a giant clamshell package. Twelve seems like a lot, but if you’re anything like me, that means one for now, one for later, two for tomorrow, and eight to sit out on my counter to get stale for Easy Almond Croissants.

You see, Almond Croissants, while a bakery favorite, are frequently just another way to use up leftover bread; think of them as the even more sophisticated cousins of French toast and Bostock. Imbued with almond flavor inside and out, they’re deceptively simple to make and even easier to eat.

Stale croissants are split and soaked in simple syrup, smeared with homemade frangipane, sandwiched together, and topped with sliced almonds before baking. They emerge from the oven fragrant and flaky with the best crisp almond edges and rich, dense centers. You may leave them plain—as if there’s a way for Almond Croissants to seem plain!—or you may dust them with a little confectioner’s sugar for flair. I like flair.

While I am a Costco croissant purist, these may be made with any pre-baked or store-bought croissants you may have on hand. Please keep in mind that your croissants may differ in size from mine, so you may end up with a larger or smaller quantity of Almond Croissants than I have. Not that I’ve ever found such a thing to be a problem. It is the summer of frangipane, after all.

Easy Homemade Almond Croissants 
makes 8-12 (I made 8)

Simple Syrup:
3/4 cup granulated sugar
3/4 cup water

Frangipane*:
2 cup blanched almond flour or 8 ounces blanched almonds
2 tablespoons all-purpose flour
1/2 teaspoon Kosher or sea salt
3/4 cup granulated sugar
3/4 cup (1 1/2 sticks) unsalted butter, cold-ish room temperature, cut into cubes
2 large eggs
1 teaspoon pure almond extract

For Assembly & Garnish:
8-12 store-bought croissants (I used 8), preferably a little stale
1/2 cup sliced almonds
2 tablespoons confectioner’s sugar, optional

The simple syrup and frangipane may be made up to a day in advance. Just cover and refrigerate until you are ready to bake.

Make the simple syrup. Combine sugar and water in a saucepan over medium heat. Bring to a simmer and stir until sugar dissolves, about 5 minutes. Remove from heat and  allow to cool until you can comfortably hold your finger in it. Transfer to a bowl or dish (I used a pie plate) that is slightly larger than your croissants.

Make the frangipane. In a food processor (or very good blender), pulse almond flour, all-purpose flour, salt and sugar together. Pulse in butter. Pour in eggs and almond extract, and process until frangipane is a homogenous paste. Set aside.

Arrange oven racks in central positions. Preheat the oven to 350F. Line two rimmed sheet pans with parchment.

Assemble the almond croissants. Slice each croissant in half equatorially. 

Working with one sliced croissant at a time, dip each half in the simple syrup, making sure to coat all sides. Place the bottom halves cut-sides-up on the prepared pans, and set the top halves on plates or another surface while assembly continues.

Use an offset icing spatula or the back of a spoon to spread about 2 heaping tablespoons of frangipane on the bottom half of each croissant. Top the frangipane with the top halves of the croissants, cut-sides-down. Press down lightly on each to adhere.

Spread about a tablespoon of frangipane on top of each filled croissant and sprinkle sliced almonds over the top. Bake croissants for 20-22 minutes, or until the frangipane is golden.

Let croissants cool on the pans for 15 minutes before removing to a rack to cool completely. Sift confectioner’s sugar over the tops, if desired. Serve slightly warm or at room temperature.

Almond Croissants are best eaten the day they are made.

Note: You will have some leftover frangipane after making these. Refrigerate it and use it for these or this.