This is by far the easiest and most delicious way to cook fennel.
Knob of butter (optional)
pinch of fennel seeds (optional)
1 fennel bulb
Slice your fennel bulb in 1cm thick slices.
Heat a fryinging pan on a medium-high heat. Add a lug of olive oil and knob of butter, if using. Add a pinch of fennel seeds and let sizzle for a few mintues. Once the fat is fairly hot add your fennel slices to the pan and sear for a few minutes until very brown. Turn over and fry until golden/dark brown on the other side.
Serve as a side or on top of a warm salad.