Oreo Stuffed Brownies with Oreo Vanilla Frosting

INGREDIENTS

Eggs, large

1/2 cup

Marshmallow creme

1 tsp

Vanilla extract or vanilla bean paste

3/4 cup

60% cacao bittersweet chocolate chips

3/8 cup

All-purpose flour

3/8 cup

Cocoa powder, unsweetened

2/3 cup

Confectioners sugar

1/2

scant tsp Salt

1 pinch

Salt

1/2 cup

Semi-sweet chocolate chips

2 tbsp

Shortening

1 cup

Sugar

1 tsp

Vanilla extract, pure

1 1/2 sticks

Butter, unsalted

1 tbsp

Butter, unsalted

8 oreo cookies chopped or broken into quarters