01 - 
                Preheat the oven to 350°F. Line an 8×8 baking pan with parchment paper.
              
              
              
                02 - 
                In a large bowl, whisk together the oil and sugar until the sugar dissolves. Beat the eggs and vanilla until well combined.
              
              
              
                03 - 
                Add the cocoa powder, flour and salt and stir until thoroughly combined. Fold in the chocolate chips.
              
              
              
                04 - 
                Pour the batter into the prepared pan and use a spatula to smooth the top. Bake for 20 to 25 minutes, or until a toothpick comes out with only a few crumbs. It's better to under bake the brownies than to overbake them.
              
              
              
                05 - 
                Allow to cool completely for at least 30 minutes on a wire rack. Use a heart shaped stencil to cut the brownies into heart shapes. Add sprinkles if desired.