Scoop ⅓ cup of raspberry jam into a small bowl and give it a good stir to loosen it a bit.
Add ½ cup of cake batter to the bowl of raspberry jam and stir to combine.
Scoop about half of the almond batter (approximately 3.5 cups or so) into the bottom of the prepared bundt pan and lightly smooth it with the back of a spoon to level (or tap the side of the pan to level it).
Next, layer on the raspberry batter slightly smoothing to even out.
Layer on the remaining almond batter. Tap the sides of the pan to smooth/level everything out, or gently smooth the top with the back of a spoon.
Bake at 350 degrees for 60-70 minutes or until a toothpick comes out clean (or with just a few crumbs attached.) Baking times can vary and so peek in as it approaches the 1 hour mark. If the top of the cake begins to get too dark, cover loosely with a piece of aluminum foil. (Ours took closer to 70 minutes to finish baking).
This recipe makes approximately 8 cups of batter.
Allow to cool in the pan for about 10 minutes before turning out onto serving plate.