01 - Preheat oven to 350°F. Line a standard 12-cup muffin pan with paper liners or lightly grease each cup.
02 - In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt until evenly distributed.
03 - In a large bowl, whisk the honey, vegetable oil, eggs, yogurt, orange juice, lemon juice, orange zest, lemon zest, and vanilla extract until smooth and well incorporated.
04 - Gradually add the dry ingredient mixture to the wet ingredients, folding gently with a spatula until just combined. Avoid overmixing to keep the muffins tender.
05 - Divide the batter evenly among the prepared muffin cups, filling each about two-thirds full.
06 - In a small bowl, combine the flour, granulated sugar, thyme leaves, and a pinch of salt. Add the cold cubed butter and rub it in with your fingertips or cut it in with a fork until the mixture forms coarse, crumbly pieces.
07 - Sprinkle the thyme crumble evenly over the top of each muffin, pressing gently so it adheres to the batter.
08 - Bake for 20 to 22 minutes, or until the tops are golden and a toothpick inserted into the center of a muffin comes out clean.
09 - Let the muffins rest in the pan for 5 minutes, then transfer them to a wire rack to cool completely.