• Preheat over to 350F
• Sift flour and baking powder together then whisk to combine.
• Cream butter and sugars in a stand mixer fitted with a paddle attachment. You can add an optional 1/4-1/2 tsp sea salt.
• Add peanut butter and mix until incorporated.
• Mix in egg and vanilla extract then add flour mixture and beat until incorporated.
• Roll dough into one inch balls and place on baking sheet lined with parchment paper.
• Flatten cookies with a fork in a criss-cross pattern.
• Bake cookies for about 10 minutes.
• Allow cookies to cool completely on baking sheet, they need to set up before being transferred.

For the cookies:

• Preheat the oven to 375 degrees F.
• In a medium bowl combine the flour, baking powder, and salt. Set aside.
• In the large bowl combine the butter and the sugar. Using an electric mixer beat the butter and sugar until light and fluffy, about 3 minutes. Add the eggs, 1 at a time, beating until incorporated. Add the ricotta cheese, lemon juice, and lemon zest. Beat to combine. Stir in the dry ingredients.
• Line 2 baking sheets with parchment paper. Spoon the dough (about 2 tablespoons for each cookie) onto the baking sheets. Bake for 15 minutes, until slightly golden at the edges. Remove from the oven and let the cookies rest on the baking sheet for 20 minutes.

For the glaze:

• Combine the powdered sugar, lemon juice, and lemon zest in a small bowl and stir until smooth. Spoon about 1/2-teaspoon onto each cookie and use the back of the spoon to gently spread. Let the glaze harden for about 2 hours. Store in an air tight container.