Do not overmix the batter – mix until the flour disappears. Use a parchment sling for clean removal. If using frozen blueberries, do not thaw them. Let the bread cool completely before slicing to avoid a gummy texture. Store wrapped tightly at room temperature for up to 3 days, in the fridge for up to 5 days, or freeze for up to 3 months. For dairy-free, use a high-quality vegan cream cheese (Miyoko's or Kite Hill) and substitute butter with vegan butter or coconut oil. For gluten-free, use a 1:1 gluten-free baking flour with xanthan gum.