Small-Batch Pear-Walnut Upside-Down Cake | Desserts & Baked Goods | Umami

Ingredients

• 2 tablespoons, unsalted butter, melted
• ¼ cup packed (1¾ ounces), dark brown sugar
• 1 teaspoon, cornstarch
• Pinch , table salt
• 1 large ripe but firm, Bosc pear (8 ounces)
• ½ cup, walnuts, toasted
• ¼ cup (1¼ ounces), all-purpose flour
• ¼ teaspoon, table salt
• ⅛ teaspoon, baking powder
• Pinch , baking soda
• ½ cup (3½ ounces), granulated sugar
• 1 , large egg
• 2 tablespoons, vegetable oil