I started by combining the warm water, sugar and yeast in the large bowl. Once it became foamy (about 5 minutes), I stirred in the olive oil, flour and salt until a shaggy dough formed.
I lightly coated the dough with olive oil, covered the bowl, and put it in the fridge overnight (about 8 hours). This slow rise deepens the flavor and gives the texture I love.
The next day I turned the dough onto a lightly oiled counter and divided it into 12 equal pieces. I placed each piece into the muffin tin, covered it, and let them rise again at room temperature for about 2 hours until puffy.
While the dough rose, I gently heated olive oil in the saucepan and added minced garlic and rosemary, then removed from heat quickly so the garlic didn’t burn. I pre-heated the oven to 450 °F (232 °C), poked deep dimples into each muffin, drizzled the garlic-rosemary oil over them, and baked for 20-25 minutes until golden and crisp on the outside.
As soon as they came from the oven I brushed with melted butter and sprinkled finishing sea salt on top. Then I let them cool just slightly before serving—warm is best.