Orange Poppy Seed Pancakes with Rosemary Maple Syrup

Name: Orange Poppy Seed Pancakes with Rosemary Maple Syrup
Ingredients: 1 cup maple syrup; 3 rosemary sprigs; 2 cups spelt flour (or all-purpose flour); 1/3 cup poppy seeds; 1/3 cup sunflower seeds; 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/2 teaspoon salt; 2 1/4 cups low-fat buttermilk; 2 large eggs; 2 tablespoons melted butter; 1 tablespoon granulated sugar; 1 1/2 tablespoons grated orange zest, plus 1/3 cup orange juice (from 1 large orange); Unsalted butter, at room temperature, for pan and serving