Chewy Chocolate Chip Cookies

I love to bake, but believe it or not, I didn't have a really good chocolate chip cookie recipe! I have a fabulous peanut butter chocolate chip cookie recipe, but until now, I didn't have a plain one. So here it is, and if I find another one that is better, I'll post it too!

3/4 cup butter, softened
1 cup packed brown sugar
2/3 cup white sugar
1 large egg
1 large egg yolk
1 Tbsp. vanilla bean paste
2 cups all purpose flour
1/3 cup bread flour
2 tsp. corn starch
3/4 tsp. baking soda
1/2 tsp. salt
1 1/2 cups chocolate chips

Cream butter and sugars in a mixer on medium speed until light and fluffy. Beat in egg and egg yolk one at a time, beating after each addition. Beat in vanilla bean paste. In a separate bowl, stir together flours, corn starch, soda and salt. With mixer on low, gradually add flour mixture to butter mixture. Do not over mix--only mix enough to combine. Stir in chocolate chips (I do this by hand). With a two-tablespoon sized scoop, portion out dough two inches apart on parchment paper covered cookie sheet. Bake at 350* for 10 min. and 30 seconds, or just until edges are starting to turn golden-brown. Cool on sheets for 5 minutes and remove to cooling rack. Makes about 30 cookies (maybe a little more).