Let’s break it down with zero judgment. Two-thirds of a cup written as a fraction is 2/3. When you double it, you multiply by 2: 2/3 x 2 = 4/3. And 4/3 is the same as 1 and 1/3 cups—the very definition of a baker’s best friend.
If you’re measuring dry ingredients, use a 1-cup measure and fill it to the one-third line after the one-cup mark. For liquids, a glass measuring cup with clear markings is your secret weapon. No ruler, no calculator—just your eyes and a steady hand.
Here’s a fun little fact: Ancient Roman cooks used roughly the same ratio logic for their bread recipes. They had no measuring cups, only hand gestures—like “a pinch of salt” times two. We’ve come a long way, but the principle remains: doubling is a universal language of generosity.
