- 9 ounce light brown sugar
- 3 ounce soft butter
- 1 teaspoon salt
- 1 tablespoon vanilla extract
- 2 ounce vegetable oil
- 1 egg
- 9 ounce all purpose flour
- 2 ounce cocoa powder
- 1 teaspoon baking soda
- 6 1/2 ounce buttermilk
- 1/2 pound butter (2 sticks)
- 3/4 teaspoon salt
- 3 cup confectioners sugar
- 1/4 teaspoon vanilla extract
- In the bowl of a stand mixer fitted with the paddle attachment, cream the butter, brown sugar, salt and vanilla extract.
- Mix until light and fluffy.
- Add the egg and oil, mix to combine.
- Scrape down the sides of the bowl.
- Sift the flour, cocoa powder and baking soda together.
- Alternate adding the dry ingredients and the buttermilk, mixing lightly between each.
- End with dry ingredients.
- Be careful not to overmix.
- Scoop one ounce portions onto a sheet pan with parchment paper or silicone mat.
- Bake at 325 degrees convection or 350 still oven.
- Cook for 4 minutes; rotate; cook 4 more minutes.
- Cookies will be a little springy in the center.
- This can be done up to a day ahead, leave at room temperature
- Combine the butter, powdered sugar, vanilla extract and salt in the bowl of the mixer with the whip attachment.
- Start slow until ingredients are combined, then whip at high speed until light and fluffy, about 5 minutes.
- When the cookies are completely cooled, scoop 2 Tablespoons of filling onto the flat side of a cookie, gently press another cookie on top.
- Repeat until all are filled.