Delicious Buttermilk Oatmeal Cookies Recipe

Ingredients

• 1 cup all-purpose flour
• 1/2 tsp baking soda
• 1/4 tsp salt
• 1/2 cup unsalted butter, softened
• 1/2 cup granulated sugar
• 1/2 cup packed brown sugar
• 1 large egg
• 1/4 cup buttermilk
• 1 tsp vanilla extract
• 1 1/2 cups old-fashioned oats
• 1/2 cup raisins or chocolate chips (optional)