Preheat oven to 350 degrees.
Spray 8 x 8 inch baking pan with baking spray. (I like to line my pan with parchment paper and then add baking spray.)
In large bowl, add two eggs. Whisk the eggs with hand held mixer for at least 30 seconds.
Add the sugar to the bowl, and mix with a hand held mixer for another 30 seconds.
Add melted butter, oil, and vanilla to the mixing bowl. (Make sure the butter has cooled off so you don't cook the eggs.) Mix the mixture for another minute with your handheld mixture.
Add the toffee bits to the egg mixture by using a handheld spatula to fold in the toffee bits.
In another bowl mix together the cocoa, salt, and flour.
Add the flour mixture to the egg mixture. Using a flat spatula, fold the the flour mixture into the egg mixture just until the mix is combined.
Pour the brownie mix into the greased pan.
Bake the brownies for 25 to 30 minutes. Bake until a toothpick comes out with moist crumbs still attached.
Remove brownies from oven and let the brownies come to room temperature. Then cut into 16 small brownies.