I once tried to make ⅔ cup of oil for a vinaigrette using only a shot glass and some hope. It did not go well. The dressing tasted like a dare. Learn from my mistakes. The key is to not overthink it. If you’re scooping flour, just use the ⅓ cup twice and level it off with a knife. If you’re measuring honey, spray the cup first with nonstick spray (or oil) so it slides out like a greased pig.
For liquid ingredients, like milk or water, use a liquid measuring cup with a spout. Fill it to the ⅔ line. That line is your friend—it’s like the water level in a toilet tank, but for cake batter. If your cup only has ounces, remember that ⅔ cup equals about 5.3 ounces or 158 milliliters. If you have a kitchen scale, just weigh it. Scales don’t lie, and they never ask you to share.
How Many 1/4 Cups To Make 2/3 Cup?
The Spoon-and-Sweep Method (for Dry Goods)
Let’s say you’re making cookies and need ⅔ cup of brown sugar. Don’t scoop directly from the bag. That packs the sugar tighter than a rush-hour subway. Instead, spoon the sugar into your ⅓ cup, then sweep off the top with a straight edge (a butter knife works great). Do that twice. Now you have fluffy, happy sugar ready to make chewy cookies.
This same trick works for flour, cocoa powder, and even that stubborn powdered sugar that always tries to form little mountains. If you don’t have a knife, use a credit card. Your Visa is now a baking tool. Just don’t use the one with the chip reader. It’s a weirdly satisfying ritual—like making a sandcastle, but you eat the results.
