Preheat the oven to 350 degrees F.
Pour flour, salt and baking soda into a medium bowl and whisk together.
Melt butter and pour it into a large bowl. Add brown sugar and granulated sugar to bowl with melted butter.
Mix together until thoroughly combined.
Add 2 eggs and 3 teaspoons of vanilla extract to the melted butter and sugar mixture and mix well.
Add dry ingredients to bowl with wet ingredients.
Gently fold flour mixture into the wet ingredients, taking care not to over mix.
Pour most of the M&M candies into the batter.
Gently fold in the M&M's to evenly distribute them.
Spread the batter into a greased 9×13 pan. Press some M&M's into the top of the batter.
Bake the Easter blondies in a 350 degree oven for 20-25 minutes. You want to be sure to take them out when they have browned on top but are still a little gooey in the middle.
Remove from oven and let cool and cut them into bars. This Easter blondie recipe will make 16 servings.