Ingredients
Equipment
Method
- Beat the butter and 1 1/2 cups sugar; beat in the 2 eggs and 1 tsp vanilla.
- Stir in the flour, cream of tartar, baking soda, salt, and 1 tsp of the cinnamon.
- Press two-thirds of the dough into a parchment-lined 9x13 pan.
- Beat the filling until smooth; spread it over the dough in the pan.
- Crumble the remaining dough over the filling; sprinkle the remaining 1 tsp cinnamon on top.
- Bake at 350°F for 30–35 minutes, until set. Cool, chill 1 hour, then cut the chilled slab into bars.
Notes
- Press two-thirds of the dough in the pan and save the rest for the top.
- Chill 1 hour before cutting.