Tuscan Kale and Red Pepper Focaccia | Saveur

Ingredients

• 2 1⁄4 tsp. instant dry yeast (not active dry)
• 1 tbsp. honey
• 3 cups all-purpose flour, divided, plus more for kneading
• 3 medium russet potato (9 oz.)
• 1⁄4 cup plus 2 Tbsp. extra-virgin olive oil, plus more for greasing
• 1 tbsp. kosher salt
• 1 cup semolina flour
• 2 cups (2 oz.) Tuscan kale (also called lacinato or dino), half finely chopped, half torn into large pieces
• 1⁄2 tsp. red pepper flakes, or more to taste
• 1 1⁄2 tsp. flaky sea salt