1/2cupunsalted buttersoftened to room temperature (1 stick)
3/4cupsour cream
4 1/2cupspowdered sugar
1/4tsp.sea salt
1tbsp.milk(or more if needed)
1tsp.vanilla extract
2dropsred food coloring
rainbow sprinkles as desired
Instructions
BLONDIES:
Cream together butter, canola oil, sugars, water, eggs, baking soda, cream of tartar and salt.
Add flour and stir with a wooden spoon until thoroughly mixed.
Spread dough into a 9x13” greased glass baking dish.
Bake cookies at 350° for 25-30 minutes or until a toothpick inserted in center comes out clean.
Cool completely.
Spread icing over top.
Sprinkle with sprinkles.
Allow icing to set up before cutting.
Refrigerate blondies until ready to serve.
SOUR CREAM ICING:
Cream butter with sour cream, vanilla and salt.
Slowly add powdered sugar.
When the ingredients get really thick add a tablespoon or so of the milk.
Beat until the frosting reaches the desired consistency.
Add 1-2 drops of red food coloring and mix with beater on high for 1 minute.
Spread frosting on top of cooled blondies. Sprinkle with rainbow sprinkles.
Allow icing to set up before storing blondies in the refrigerator.
Cut into 24 bars.
Notes
NOTE: This recipe works best with mixing the flour in with a wooden spoon. If you try to use an electric mixer it overmixes the ingredients and you have to keep adding additional flour to get the right consistency of the dough.NOTE: These bars need to be refrigerated about 2 hours after adding the icing so the icing sets up enough and doesn’t drizzle down the sides when cutting.