Line 2 baking sheets with baking paper (parchment paper). Do not greese the paper or cookies will spread. Preheat oven to 350 degrees (175 C).

In a medium bowl, combine both flours with baking soda and baking powder and set aside.

In a saucepan, melt half of the butter over medium heat. Transfer to a large bowl and add remaining unmelted butter. Stir until combined. (If your butter melts completely, put it in the refrigerator or freezer for a few minutes until it has consistency of a firm yogurt or cream).

Add brown sugar, white sugar, honey, salt and vanilla. Whisk (with a hand whisk, no mixer needed) until incorporated. Add egg and yolk and continue whisking until mixture is smooth. If you want your cookies to have cracked surface, let the mixture stand for 10 minutes at this point.

Using rubber spatula or wooden spoon, stir in flour mixture until just combined. Do not overmix. Stir in M&M candies.

Take 2 tablespoons of dough at a time and roll into balls. Place 2 inches apart on lined baking sheets. Top each cookie with some more candies to make them look pretty.

Bake in preheated oven, 1 sheet at a time on the middle rack, until cookies are puffy and slightly brown, about 10 to 12 minutes (depending on your oven). Cookie centers should still be soft. Rotate baking sheet halfway through baking. Cool the M&M cookies on the sheets.