Einstein's Chocolate Chip Coffee Cake

2 C Flour
1 1/2 tsp Baking Powder
1 tsp Baking soda
1/2 tsp Salt
1 1/4 C Sugar
1 tsp Cinnamon
1 stick Butter (room temp)
2 Eggs (room temp)
1 C Sour Cream
1 tsp Vanilla Extract
1 C Chocolate Chips

Topping:
4 Tblsp Butter
1/4 C Flour
1/4 C Brown Sugar
1/2 C Chocolate Chips

1. Preheat oven to 350. Grease an 8-inch square baking pan. In a medium bowl, mix together flour, baking powder, baking soda, and salt. In a small bowl, combine 1/4 C sugar and cinnamon.
2. Beat together butter and remaining 1 C sugar until fluffy, about 5 minutes. Beat in the eggs, one at a time, then beat in sour cream and vanilla. Fold into the flour mixture until just combined. Add cinnamon sugar mixture and chocolate chips. Spread into pan.
3. Mix together butter, brown sugar, and flour for topping. Crumble over top of batter. Sprinkle with chocolate chips.
4. Bake 30-35 minutes.