Biscoff Blondie Bars

Biscoff Crust 
Crush 7 oz. Biscoff cookies
Add-
4 Tablespoons butter
¼ teaspoon salt 

Mix until well combined.
Press crust into the bottom of a greased 8” baking dish. 
Top with Blondie Bar Layer. 
Bake at 350 degrees for 38+ minutes.  These are gooey when first out of the oven and set up for cutting when they cool down. Let cool completely. 
Frost with Biscoff Buttercream Frosting.
Drizzle with jarred Biscoff Cookie Butter. 

Blondie Bar Layer
¾  cup melted butter
1 cup packed brown sugar
1 egg + 1 egg yolk 
2 Tablespoons sour cream
1 teaspoon vanilla
1 ⅓ cups all-purpose flour
½ teaspoon baking powder
½ teaspoon salt
Mix together melted butter and sugar.  Stir in eggs, sour cream and vanilla; don’t overmix.  Add dry ingredients all at once.  Stir until texture is smooth. 

Biscoff Buttercream Frosting
½ cup soft butter
½  cup Biscoff Cookie Butter
1 ¼ + cups powdered  sugar
½ teaspoon vanilla
Dash of salt
2 Tablespoons whipping cream

Cream butter and cookie butter on medium speed for 1 minute.
Stir in powdered sugar. Add vanilla salt, and cream. Whip for 3 minutes.
Spoon into Ziploc bag until ready to use.