Line 12 muffin cups with liners or lightly grease them.
In a large bowl whisk gluten-free all-purpose flour, almond flour, baking powder, and salt. Add the sugar and mix. Set aside.
In a medium bowl mix the egg, oil, milk, lemon zest, and vanilla extract.
Pour the wet ingredients into the dry ingredients and mix until just incorporated.
Add 1 cup of the raspberries and mix with a rubber spatula but without beating. Be careful not to smash the fruits.
Pour the mixture into the previously prepared pans and place the remaining 1/2 cup of raspberries on the top. Fill the muffin cups ¾ full, dividing the mixture as evenly as possible.
Bake for 25 minutes or until a tester comes out dry.
Let cool before removing.
Notes
If you are going to use frozen raspberries, remember not to thaw them. Keep it frozen until you add them to the batter.