Blueberry Muffins with Salted Honey Crumble

Name: Blueberry Muffins with Salted Honey Crumble
Ingredients: ½ Cup light brown sugar; 10 Tablespoons unsalted butter, softened; 4 Tablespoons clover honey; ½ Teaspoon vanilla extract; 1 ¼ Cup all-purpose flour; 1 ½ Teaspoon kosher salt; ½ Cup unsalted butter, at room temperature, plus more for greasing; 2 Cups all-purpose flour, plus more for dusting; 2 Teaspoons baking powder; ½ Teaspoon kosher salt; 1 Cup sugar; 3 Tablespoons honey (use a mild, light varietal); 1 Teaspoon vanilla extract; 2 large eggs; ½ Cup milk; 2 Cups fresh blueberries