Or search: mix, cook, hatch, invent, mingle, commix, cooking, cookery, idealize, idealise, fabricate, manufacture
2 Syllables: SU
blotted, chocolate, clotted, dotted, droplets, goblet, nodded, plotted, pocket, product, rocket, socket, spotted, trotted
3 Syllables: USU
adopted

Found 15 words across 2 groupings. Skipped 5 excess words of a similar stem.