Turn on the oven and set it to 200º C / 400º F.
Wash the pears and quarter them lengthwise. Remove the core and chop the pears into chunks.
Chop the almonds as well. The size is not that important so do what feels right for you - as long as you don't grind them. My preference is chunky bits which add a lovely texture.
Using a blender or an immersion blender, blend the chia seeds with the water until you get a smooth paste. Transfer to a large-ish bowl and mix in the oil, milk, and date sugar. Set aside.
In a smaller bowl, mix the oat flour with the baking powder and the cardamom; then add that to the liquid ingredients. Mix well before adding the chopped pears and the almonds. Stir to mix it well and then pour the batter into a silicone bread or cake pan. If you do not have a silicone bread pan a metal one will work just fine, but you will need to either oil it well or line it with baking paper or you'll risk it sticking to the pan.
Place the pan in the oven and bake for 40 to 45 minutes or until a pin or knife inserted comes out clean.