diff --git a/test/experimental/delivery_timeout_test.go b/test/experimental/delivery_timeout_test.go
index 8a2d1c57187..c9148f330a4 100644
--- a/test/experimental/delivery_timeout_test.go
+++ b/test/experimental/delivery_timeout_test.go
@@ -21,7 +21,9 @@ package experimental
 import (
 	"testing"
 
+	"knative.dev/eventing/pkg/apis/eventing"
 	"knative.dev/eventing/test/experimental/features/delivery_timeout"
+	"knative.dev/eventing/test/rekt/resources/broker"
 	"knative.dev/pkg/system"
 	"knative.dev/reconciler-test/pkg/environment"
 	"knative.dev/reconciler-test/pkg/k8s"
@@ -40,4 +42,5 @@ func TestDeliveryTimeout(t *testing.T) {
 	)
 
 	env.Test(ctx, t, delivery_timeout.ChannelToSink())
+	env.Test(ctx, t, delivery_timeout.BrokerToSink(broker.WithBrokerClass(eventing.MTChannelBrokerClassValue)))
 }
diff --git a/test/experimental/features/delivery_timeout/broker.go b/test/experimental/features/delivery_timeout/broker.go
new file mode 100644
index 00000000000..e3585f3cfb7
--- /dev/null
+++ b/test/experimental/features/delivery_timeout/broker.go
@@ -0,0 +1,114 @@
+/*
+Copyright 2021 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package delivery_timeout
+
+import (
+	"context"
+	"time"
+
+	cetest "github.com/cloudevents/sdk-go/v2/test"
+	"github.com/rickb777/date/period"
+	"github.com/stretchr/testify/require"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	eventingduckv1 "knative.dev/eventing/pkg/apis/duck/v1"
+	eventingv1 "knative.dev/eventing/pkg/apis/eventing/v1"
+	eventingclient "knative.dev/eventing/pkg/client/injection/client"
+	"knative.dev/eventing/test/rekt/resources/broker"
+	"knative.dev/eventing/test/rekt/resources/trigger"
+	duckv1 "knative.dev/pkg/apis/duck/v1"
+	"knative.dev/reconciler-test/pkg/environment"
+	"knative.dev/reconciler-test/pkg/eventshub"
+	"knative.dev/reconciler-test/pkg/eventshub/assert"
+	"knative.dev/reconciler-test/pkg/feature"
+	"knative.dev/reconciler-test/pkg/manifest"
+)
+
+// BrokerToSink tests a scenario where the flow is source -> broker -> sink (timeout) -- fallback to -> dead letter sink
+func BrokerToSink(brokerOpts ...manifest.CfgFn) *feature.Feature {
+	f := feature.NewFeature()
+
+	timeout := 6 * time.Second
+	// Clocks are funny, let's add 1 second to take in account eventual clock skews
+	timeoutPeriod, _ := period.NewOf(timeout - time.Second)
+	timeoutString := timeoutPeriod.String()
+
+	brokerName := feature.MakeRandomK8sName("broker")
+	triggerName := feature.MakeRandomK8sName("trigger-sink")
+	sinkName := feature.MakeRandomK8sName("sink")
+	deadLetterSinkName := feature.MakeRandomK8sName("dead-letter")
+	sourceName := feature.MakeRandomK8sName("source")
+
+	ev := cetest.FullEvent()
+
+	f.Setup("install sink", eventshub.Install(
+		sinkName,
+		eventshub.StartReceiver,
+		eventshub.ResponseWaitTime(timeout),
+	))
+	f.Setup("install dead letter sink", eventshub.Install(
+		deadLetterSinkName,
+		eventshub.StartReceiver,
+	))
+
+	f.Setup("Install broker", broker.Install(brokerName, brokerOpts...))
+	f.Setup("Broker is ready", broker.IsReady(brokerName))
+
+	f.Setup("Install broker -> sink subscription", func(ctx context.Context, t feature.T) {
+		namespace := environment.FromContext(ctx).Namespace()
+		_, err := eventingclient.Get(ctx).EventingV1().Triggers(namespace).Create(ctx,
+			&eventingv1.Trigger{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      triggerName,
+					Namespace: namespace,
+				},
+				Spec: eventingv1.TriggerSpec{
+					Broker: brokerName,
+					Subscriber: duckv1.Destination{
+						Ref: &duckv1.KReference{
+							APIVersion: "v1",
+							Kind:       "Service",
+							Name:       sinkName,
+						},
+					},
+					Delivery: &eventingduckv1.DeliverySpec{
+						DeadLetterSink: &duckv1.Destination{
+							Ref: &duckv1.KReference{
+								APIVersion: "v1",
+								Kind:       "Service",
+								Name:       deadLetterSinkName,
+							},
+						},
+						Timeout: &timeoutString,
+					},
+				},
+			}, metav1.CreateOptions{})
+		require.NoError(t, err)
+	})
+
+	f.Setup("trigger is ready", trigger.IsReady(triggerName))
+
+	f.Setup("install source", eventshub.Install(
+		sourceName,
+		eventshub.StartSenderToResource(broker.GVR(), brokerName),
+		eventshub.InputEvent(ev),
+	))
+
+	f.Assert("receive event on sink", assert.OnStore(sinkName).MatchEvent(cetest.HasId(ev.ID())).Exact(1))
+	f.Assert("receive event on dead letter sink", assert.OnStore(deadLetterSinkName).MatchEvent(cetest.HasId(ev.ID())).Exact(1))
+
+	return f
+}