Apple, Date, and Ginger Crisp

INGREDIENTS

• 4 tablespoons light-brown sugar
• 4 tablespoons unsalted butter, melted
• 2 tablespoons grated fresh ginger
• 1/2 teaspoon ground cinnamon
• 1 teaspoon grated orange zest
• 4 pitted Medjool dates, chopped into 1/4-inch pieces
• 2 Granny Smith apples, peeled, halved, cored, and cut into 1/2-inch wedges
• 2 Macoun apples, peeled, halved, cored, and cut into 1/2-inch wedges
• 9 gingersnap cookies, finely crumbled (3/4 cup)
• 2 tablespoons chopped pecans
• 2 tablespoons old-fashioned rolled oats
• 1/2 cup thick unsweetened yogurt