For the walnut streusel

23 cup chopped walnuts (or any nut you like, really)
23 cup light brown sugar, packed
12 cup rolled oats
14 cup whole wheat flour
1 tbsp. cinnamon
12 tsp. salt
8 tbsp. cold unsalted butter, cut into pieces

For the cornbread cake

12 cup (2 sticks) plus 2 tsp. room-temperature butter
3 cups figs, stems removed, divided
23 cup granulated sugar
2 large eggs
1 12 cups cornmeal
1 cup whole wheat flour
2 tsp. baking powder
12 tsp. baking soda
12 tsp. salt
1 12 cups buttermilk
1 tsp. vanilla paste or extract
12 cup sour cream
Whipped cream (optional)


Make the streusel: In a medium bowl, toss together all the ingredients but the butter, taking care to distribute them all evenly. Add the butter and pinch together with your fingers until it forms a wet crumb.
Make the cake: Preheat your oven to 375° and butter a 12-inch cast-iron skillet with 2 teaspoons butter. Cut 1 cup of figs into eighths. Cut the remaining 2 cups in half lengthwise and set aside.
In a mixer fitted with the paddle attachment, cream together 12 cup butter and the sugar until light and fluffy, about 4 minutes. Add the eggs one at a time, making sure the first egg is fully incorporated before adding the second. From this point forward, make sure you scrape down the sides of the bowl periodically with a spatula. Add the cornmeal, roughly 12 cup at a time, until it’s just incorporated. In a medium bowl, sift the flour, baking powder, baking soda, and salt. In another smaller bowl, whisk the buttermilk and vanilla. With the mixer on low, add the sifted flour and buttermilk alternately in three batches, ending with the flour. Using your spatula, fold in the sour cream and the cup of figs cut into eighths.
Spoon half the corn-cake mixture into the bottom of the skillet and spread it out with a spatula. Sprinkle the streusel evenly over the top and finish with the remaining batter. Press the halved figs into the top, pink-flesh-side up, taking care not to cluster them together at the center. Bake uncovered, in the middle of your oven, for 45 to 50 minutes. Cool completely and serve with whipped cream, if using.