Ingredients

•  
• • 1 cup (2 sticks) unsalted butter 
• • 1 cup granulated sugar 
• • 1 cup brown sugar 
• • 2 eggs 
• • 2 teaspoons vanilla 
• • 2  1/4 cups all-purpose flour 
• • 2 teaspoons baking powder 
• • 1/2 teaspoon cream of tartar 
• • 1/2 teaspoon salt 
• • 1/8 cup granulated sugar 
• • 1 teaspoon cinnamon 
• 5 m

Directions

• Preheat oven to 350 degrees F. Line a 9x13 baking dish with aluminum foil, leaving some overhang for easy removal, coated lightly with nonstick cooking spray. 
• 5 m
• Place butter in a large microwave safe mixing bowl and microwave on high for a minute, and then in 20 seconds intervals until melted, making sure it doesn’t boil. Add in both sugars, eggs, and vanilla. Beat with a handheld mixer until combined.  Add in flour, baking powder, cream of tartar, and salt. Continue to mix until well blended.  
• 15 m
• Using a spatula, transfer batter to the prepared dish and spread it out evenly. Mix together the 1/8 cup of sugar and cinnamon; sprinkle it over the top.  
• 5 m
• Bake for 30 minutes until a toothpick inserted in the center comes out almost clean. 
• (30 m)
• Remove from the oven and allow to cool completely before separating from the foil. Cut into bars and enjoy! 
• (Cool)

Notes

• NOTES: these can be stored for up to five days at room temperature in an airtight container. 
• 1/15 = 300 cals.

Photos