Chocolate-Mint Chip Ice Cream Sandwiches

INGREDIENTS

Egg, large

1/2 cup

All-purpose flour

1/4 tsp

Baking soda

3/4 cup

Brown sugar, packed light

1/4 cup

Chocolate chips, semisweet

1/4 cup

Cocoa powder, unsweetened

1/4 tsp

Salt

4 oz

Semisweet or bittersweet chocolate

3 tbsp

Sugar

1/2 tsp

Vanilla extract

4 tbsp

Butter

1 pint

Mint chocolate chip ice cream