![](https://cdn.statically.io/img/www.allrecipes.com/thmb/N6xzYdrA8qV8AdBJbidUXoENj5c=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/4580382-170906f852bf42b79eb043c8e74543e7.jpg)
Ingredients
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cooking spray
Crumb Topping:
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½ cup white whole wheat flour
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½ cup rolled oats
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6 tablespoons unsalted butter, melted
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¼ cup loosely packed light brown sugar
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½ teaspoon vanilla extract
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¼ teaspoon salt
Bottom Layer:
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½ cup unsalted butter, softened
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½ cup confectioners' sugar
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2 eggs
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1 egg yolk
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1 tablespoon lemon zest
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1 ½ teaspoons finely chopped rosemary, or more to taste
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½ teaspoon vanilla extract
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¾ cup white whole wheat flour
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½ teaspoon baking powder
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⅛ teaspoon salt
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2 (6 ounce) containers fresh blackberries
Directions
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Preheat oven to 350 degrees F (175 degrees C). Line an 8-inch baking dish with parchment paper, leaving an overhang on two sides.
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Combine 1/2 cup white whole wheat flour, oats, 6 tablespoons butter, brown sugar, 1/2 teaspoon vanilla extract, and 1/4 teaspoon salt in a small bowl; mix with a fork to make a crumbly topping. Place in the refrigerator.
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Combine 1/2 cup butter and confectioners' sugar in a bowl; beat with an electric mixer until light and creamy. Add eggs and egg yolk one at a time, mixing well after each addition. Beat in lemon zest, rosemary, and 1/2 teaspoon vanilla extract.
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Mix 3/4 cup white whole wheat flour, baking powder, and 1/8 teaspoon salt together in a separate bowl. Add to the creamed butter mixture in 2 to 3 batches, mixing well after each addition, until a thick dough forms.
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Spread dough in the bottom of the prepared pan. Arrange blackberries evenly on top. Stir crumb topping and sprinkle evenly over blackberries. Press down gently to pack topping down.
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Bake in the preheated oven until a toothpick inserted into the center comes out clean, 40 to 45 minutes. Transfer to a wire rack; let cool for 1 hour.
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Lift bars out of the pan using the parchment paper edges. Cut into 12 pieces using a long serrated knife.
Cook's Note:
Substitute all-purpose flour for the white whole wheat flour if preferred.
Nutrition Facts (per serving)
319 | Calories |
20g | Fat |
31g | Carbs |
5g | Protein |
Nutrition Facts | |
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Servings Per Recipe 9 | |
Calories 319 | |
% Daily Value * | |
Total Fat 20g | 26% |
Saturated Fat 12g | 60% |
Cholesterol 112mg | 37% |
Sodium 145mg | 6% |
Total Carbohydrate 31g | 11% |
Dietary Fiber 5g | 17% |
Total Sugars 13g | |
Protein 5g | 10% |
Vitamin C 9mg | 10% |
Calcium 47mg | 4% |
Iron 2mg | 9% |
Potassium 186mg | 4% |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.