Recipe: Rhubarb Lavender Crisp

Name: Recipe: Rhubarb Lavender Crisp
Ingredients: Butter or cooking spray; 2 pounds fresh rhubarb, leaves removed and discarded, diced; 1/2 cup granulated sugar; 1/4 cup honey; Pinch fine salt; 1/2 teaspoon dried lavender buds (food safe); 1/2 cup sliced almonds; Vanilla or strawberry ice cream, or whipped cream, for serving (optional); 1 1/2 cups rolled oats; 1/2 cup all-purpose flour; 1/2 cup packed light brown sugar; Pinch of fine salt; 5 tablespoons unsalted butter, melted; Water or milk