1 cup flour
1 cup mini* semi-sweet chocolate chips
3/4 cup mini marshmallows
1/2 cup toffee chips
1/2 cup sugar
1/4 cup light brown sugar
6 tablespoons butter, at room temperature
1 teaspoon baking powder
1 teaspoon vanilla
Preheat oven to 350. Grease an 8x8 inch baking dish. In a large bowl, cream together the brown sugar, sugar and butter. Add the eggs and vanilla, beat until fluffy. Add the flour, 2/3 of the chocolate chips**, 1/2 of the marshmallows, all of the toffee bits and the baking powder until thoroughly combined. Pour into a prepared pan and bake 20 minutes or until just set. Sprinkle evenly with remaining marshmallows and chips, return to oven for an additional 5-10 minutes or until a toothpick inserted (not through a marshmallow!) comes out clean.
*Mini chips melt faster, but regular chips would work too.
**If you are using regular sized chips, you might want to add the chips after the flour so they don't get broken up.