Adapted from here
Ingredients220g unsalted butter
2 1/4 cups bread flour*
1 teaspoon salt
1 teaspoon baking soda
1/4 cup sugar
1 1/4 cups brown sugar
1 egg
1 egg yolk
2 Tbsp milk
1 1/2 tsp vanilla essence/exract
2 cups semisweet chocolate chips (use the regular chips and not mini ones to give some height to the cookie)
* Do not replace bread flour with plain flour because the extra protein in bread flour gives the cookie a chewy character.
Method
1. Heat oven to 180C
2. Melt the butter in a heavy-bottom medium saucepan over low heat
3. Sift together the flour, salt, and baking soda and set aside
4. Pour the melted butter in the mixer's work bowl
5. Add the sugar and brown sugar
6. Cream the butter and sugars on medium speed
7. Add the egg, yolk, 2 tablespoons milk and vanilla extract and mix until well combined
8. Slowly incorporate the flour mixture until thoroughly combined and stir in the chocolate chips
9. Chill the dough, then scoop onto parchment-lined baking sheets
10.Bake for 14 minutes or until golden brown, checking the cookies after 5 minutes, rotate the baking sheet for even browning
11.Cool completely and store in an airtight container


