Day 2 of “use-up-the-buttermilk” cookie baking plan led straight to preparing these fabulous shortbread-type cookies on Wednesday. I added the “burst” to their name because the lemon zest in the cookie dough bursts through with every bite, and there is  NO gloomy winter day that isn’t brightened by taking the time to bake these flavorful morsels.

These are not at all sweet but they are buttery and crumbly and tangy all in one bite! Like all shortbread batters, the ingredients are simple: butter, sugar, vanilla, and flour. Set your butter out early to soften and don’t skip chilling the dough for 30 minutes once mixed; once chilled you can slice the logs easily before baking them resulting in pretty and uniform pieces to enjoy with a cup of tea and your book.  Allow the powdered sugar-fresh lemon juice glaze to dry before storing the cookies in an airtight container. The glaze does ‘sink in’ to the cookies and while you can’t see it, when you taste a cookie, you definitely will enjoy a pop of lemon.  If you love sunshine, lemons, and rich buttery flavor, this is the cookie for you!

Lemon Sunshine Bursts

Ingredients

6 T. unsalted butter, softened
1/3 cup sugar
1 large egg yolk
1/4 tsp. vanilla extract
1 cup flour
2 T. buttermilk
1-1/2 tsps. finely grated lemon zest
1/8 tsp. salt
1/2 cup powdered sugar
2 T. lemon juice

Directions

In a large bowl, beat together butter and sugar until light and fluffy. Add egg yolk and vanilla and beat until well combined. Add flour and beat until dough begins to form. Add buttermilk and beat well.  Add lemon  zest and salt, fold well, and stir until dough comes together. Divide dough into two parts. Roll each part into a log that is about 1.5″ wide. Wrap each log in plastic wrap. and chill dough in refrigerator for 30 minutes.

Preheat oven to 350°F. Line two baking sheets with parchment paper. Take dough out of refrigerator and cut into 1/4 inch” slices. Arrange cookies on baking sheets and bake until dry and turning golden at the edges, about 14 minutes.

Cool cookies completely. In a small bowl, whisk together confectioners sugar and lemon juice. When cookies are cool enough to handle, dip the top of each cookie in the glaze. Let dry for 10 minutes before storing, airtight.  Yields 2 dozen cookies.