Sourdough Oatmeal Cookies

Sourdough Oatmeal Cookies
Prep 25 min Cook 10 min Serves 29 Source

Ingredients

  • 1 cup unsalted butter
  • 1 cup brown sugar (firmly packed (use light brown sugar or a mix of light and dark))
  • ½ cup granulated sugar
  • ⅔ cup sourdough discard
  • 2 large egg yolks (room temperature preferred)
  • 2 teaspoons vanilla extract
  • 1 ½ cups all-purpose flour
  • 1 teaspoon ground cinnamon
  • 1 teaspoon baking soda
  • ¾ teaspoon table salt
  • 3 cups old-fashioned rolled oats

Steps

  1. 1

    Brown the butter: Place butter in a medium-sized saucepan over medium heat. Once melted, increase heat slightly to just above medium. Use a spatula or wooden spoon to constantly stir the butter, scraping the sides and bottom of the pan with the spatula to prevent burning. The butter will sputter and pop for a bit before this slows and it begins to brown (continue stirring during this time), continue stirring. Once you notice a fair bit of browning on the bottom of the pan and the popping has ceased, remove from heat and pour into a large heat-proof bowl. Allow to cool completely to room temperature before proceeding.

  2. 2

    Once butter is cooled completely, add sugars, sourdough discard, egg yolks, and vanilla and stir until thoroughly combined.

  3. 3

    In a separate medium-sized bowl, whisk together flour, cinnamon, baking soda, and salt.

  4. 4

    Gradually add dry ingredients into the wet, stirring until completely combined.

  5. 5

    Add oats and stir until combined.

  6. 6

    Cover bowl with plastic wrap and chill cookie dough in the refrigerator for at least 30 minutes.

  7. 7

    When dough has chilled and you’re about ready to bake, preheat oven to 350F (175C) and line baking sheets with parchment paper.

  8. 8

    Once oven is preheated, remove dough from fridge, uncover, and scoop dough by 1 ½ Tablespoon-sized scoop (34g) and drop onto prepared baking sheet, placing at least 2” (5cm) apart.

  9. 9

    Transfer to center rack of 350F (175C) and bake for 10-11 minutes, cookies are done when the edges are just beginning to turn a slightly darker brown (they may look slightly underdone at the very centers). Allow cookies to cool completely on baking sheet before enjoying!