Peanut Butter Snickerdoodles

Ingredients

• 1.25 cups peanut butter
• 1 cup white sugar
• 1 cup packed brown sugar
• 0.5 cup unsalted butter
• 0.5 cup shortening
• 1 teaspoon vanilla extract
• 2 eggs
• 2.5 cups all-purpose flour
• 2 teaspoons cream of tartar
• 1.5 teaspoons ground cinnamon
• 1.5 teaspoons baking soda
• 1 teaspoon baking powder
• 0.5 teaspoon salt
• 0.25 cup white sugar, or to taste
• 2 teaspoons ground cinnamon, or to taste

Steps

1. Heat the oven to 375 degrees F (190 degrees C).
2. Put the peanut butter, 1 cup white sugar, brown sugar, butter, and shortening in a large bowl. Use an electric mixer to beat until creamy, stir in the vanilla extract, then beat in the eggs.
3. In a separate bowl, sift together the flour, cream of tartar, 1 1/2 teaspoons cinnamon, baking soda, baking powder, and salt. Add gradually to the egg mixture, mixing well.
4. Combine 1/4 cup sugar and 2 teaspoons cinnamon in a shallow bowl. Form the dough into 1-inch balls, coat them in the cinnamon-sugar, and put them on a baking sheet. Flatten each slightly with the bottom of a drinking glass or with the tines of a fork pressed in a criss-cross pattern.
5. Bake in the preheated oven for about 8 minutes, until lightly browned, taking care not to overbake. Move the cookies to a wire rack to cool.