Ingredients

• 3/4 cup (1 1/2 sticks) unsalted butter, at room temperature
• 1 cup packed light brown sugar
• 1 3/4 cups all-purpose flour
• 1/2 teaspoon baking soda
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon salt
• 1 1/2 cups old-fashioned oats
• 1 large jar (18 ounces) raspberry jam or orange marmalade

Instructions

1. Preheat oven to 400 degrees F. Lightly grease or spray a 9-by-13-inch baking pan.
2. Cream butter and sugar on medium speed until light, about 2 minutes. Whisk together flour, baking soda, cinnamon, and salt, then stir into butter mixture. Dough will be crumbly and dry. Blend in oats.
3. Press half of the mixture into the bottom of the pan. Gently spread the jam over the crust. Sprinkle remaining crumb mixture over top of the jam. Gently press the crumbs to the jam.
4. Bake in the center of the oven for 20 minutes, until the top begins to turn golden. Remove bars from the oven and cool for 15 minutes. Cut into bars.