Transfer half of the batter to a 10-inch cast-iron skillet or other baking dish. The batter will be thick, so spread it out as needed to cover the bottom of the pan.
Add half of the blueberry compote (or preserves if using) in small dollops scattered on top of the cornbread batter.
140 grams homemade blueberry compote
Add the remaining cornbread batter (since the batter is thick, you should do this in several small scoops or dollops on top), then use a knife to swirl the pockets of blueberry compote throughout the batter.
Bake on the middle rack for 32-40 minutes or until the center springs back when pressed lightly.
While the cornbread bakes, make the honey lemon glaze. Add the zest of the lemon, lemon juice, honey, and melted butter to a small bowl and stir until evenly combined.
Unless otherwise stated, all ingredients should be at room temperature.
Use a kitchen scale. It's more precise. If you insist on measuring by volume, make sure you spoon the flour into the measuring cups, then level to avoid packing.
Avoid just folding in raw blueberries! They are not as flavorful and leave behind soggy pockets of fruit. A homemade blueberry compote needs 2 ingredients and 10 minutes max. If you're short on time, just use blueberry preserves; my favorite brands are Bonne Maman and Stonewall Kitchen.
You can also make muffins! Fill each muffin only two-thirds of the way and bake at 375°F until the dome springs back when pressed lightly.