01 - Preheat the 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, plain yogurt, freshly squeezed orange juice, lemon juice, orange zest, lemon zest, and vanilla extract until smooth and well incorporated.
04 - Gradually fold the dry ingredient mixture into the wet ingredients using a spatula, mixing only 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, fresh thyme leaves, and a pinch of salt. Add the cold cubed butter and use your fingertips or a fork to work it in until the mixture resembles coarse crumbs.
07 - Sprinkle the thyme crumble evenly over each portion of muffin batter, pressing gently so it adheres.
08 - Bake for 20 to 22 minutes, or until a toothpick inserted into the center of a muffin comes out clean and the tops are lightly golden.
09 - Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack to cool completely before serving.