
This buttery, tender cake gets its signature swirl from a thick layer of cinnamon-spiced streusel sandwiched right through the middle, so every bite pulls apart into soft crumb and crunchy, sugared topping. Sour cream keeps the base ultra-moist while a splash of vanilla rounds out the flavor, and a handful of chopped walnuts or pecans in the streusel adds a welcome bit of texture. The batter layers into the pan half at a time, cradling that streusel layer before baking into a deep golden top that's just barely set in the center. It's the kind of one-pan bake that's equally good warm from the oven with coffee or sliced up the next morning, and it's a genuinely great choice for a gluten free spread. Simple pantry staples and a classic streusel crumb make this one worth keeping on repeat.
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Learn more →12 servings

Bob’s Red Mill 1 to 1 Baking Flour
Bob's Red Mill Baking Flour, 1 to 1, Gluten Free
King Arthur Gluten Free Measure for Measure Flour













Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking pan with butter or nonstick spray.
Make the streusel: In a medium bowl, whisk together the brown sugar, 1/2 cup flour, cinnamon, and 1/4 tsp salt. Pour in the melted butter and stir with a fork until the mixture clumps into coarse, sandy crumbs. Fold in the walnuts or pecans, if using. Set aside.
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