adapted from Baking Bites
makes 6 large sandwich cookies
4 ounces (8 tablespoons, 1/2 cup) butter
1/4 cup sugar
1/2 cup packed light brown sugar
pinch each cinnamon, ground cloves, and ginger
scant 1/2 teaspoon kosher salt
1/2 cup Biscoff (make your own!)
1 teaspoon vanilla extract
1 1/2 cups flour
1/4 teaspoon baking soda
1/4 teaspoon baking powder
swedish pearl sugar, or turbinado sugar, for rolling
for the ganache:
1/3 cup dark chocolate chips
2 tablespoons heavy cream
Preheat oven to 350 degrees F.
Line 2 sheet pans with parchment paper.
Beat butter on high until fluffy and soft, about 1 minute.
Add in the sugars, spices, and the salt and beat on high until all of sugar is dissolved and mixture is very light in color and shiny and not-gritty in texture, about 3 minutes.
Scrape the sides of the bowl and add in the egg and vanilla extract.
Beat for 3 more minutes.
Scrape the sides of the bowl and add in the Biscoff and beat for 1 minute.
Scrape the sides of the bowl and add in the flour, baking soda, and baking powder.
Mix just until homogeneous, about 1 minute.
Using a large cookie scoop, or an ice cream scoop, scoop out 12 cookies.
Gently roll them in the pearl sugar, making sure to coat all parts of the cookie.
Bake for 9-10 minutes, until puffy.
They will look very underdone and will still be extremely soft in the middle; they will look somewhat uncooked in the very center.
Allow to cool on the sheet pans; the cookies will decompress and retain their softness, but the residual heat will ensure that they are not raw.
Once cooled, make the ganache.
Microwave the chocolate chips and cream together until the chips are mostly melted; do this in 30 second bursts.
Stir to combine and finish melting the chocolate.
Spread between two cookies and sandwich them!