In a medium bowl, whisk flours, baking powder, baking soda, chia and cinnamon, if desired.
Add egg, milk and cane juice and gently mix until just incorporated. Add yogurt and oil and whisk until just incorporated but some small lumps remain; do not over-mix.
Mist a large nonstick skillet with cooking spray and heat on medium. Working in batches, add batter in 1/2-cup increments; carefully arrange 1 slice peach in center of each. When tops begin to bubble, flip pancakes and cook until golden. Transfer to a large plate and cover to keep warm.
Mist skillet with cooking spray and heat on medium. Add remaining peach slices and cook, stirring occasionally, until golden and caramelized. Divide pancakes among serving plates and top with peach slices.
NOTE FROM READER RECIPE DEVELOPER ELLIE KIM: “These pancakes are amazingly moist and fluffy, almost like the regular white flour-laden pancakes you would order at a diner!”