Food & Cooking Recipes Dessert & Treats Recipes Cookie Recipes Heart Sandwich Cookies 3.9 (59) 1 Review By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on February 2, 2021 Print Rate It Share Share Tweet Pin Email Yield: 30 These sweet cookies make the best treats for your loved ones. Ingredients ½ cup old-fashioned rolled oats 1 cup all-purpose flour (spooned and leveled), plus more for rolling ⅓ cup whole-wheat flour ½ teaspoon coarse salt ¾ cup (1 ½ sticks) unsalted butter, room temperature ½ cup packed light-brown sugar ½ teaspoon pure vanilla extract ½ cup chocolate-hazelnut spread or jam Directions Preheat oven to 350 degrees. Spread oats on a rimmed baking sheet; bake until golden, about 10 minutes. Transfer to a medium bowl; stir in flours and salt. In a large bowl, using an electric mixer, beat butter and brown sugar on medium until fluffy. Add vanilla; beat to combine. Scrape down bowl. Add oat mixture; beat until blended. Form dough into a disk, wrap in plastic, and refrigerate until firm, 2 hours. Preheat oven to 325 degrees, with racks in upper and lower thirds. On a lightly floured surface, roll dough 1/8 inch thick, dusting lightly with flour as needed. Cut out cookies with a 2-inch heart-shaped cookie cutter; place 1/2 inch apart on two parchment-lined baking sheets. Bake until cookies are golden around edges, 12 to 15 minutes, rotating sheets halfway through. Let cool 5 minutes, then transfer cookies to a wire rack to cool completely. Repeat with remaining dough, chilling if too soft (reroll and cut scraps). Spread filling on flat side of half the cookies; top with remaining cookies. Rate it Print